This invention provides compounds having strong analgesic effects for both nociceptive pain and neuropathic pain and having decerased side effects, as well as pharmaceutical use thereof.This invention provides a cyclohexane derivative or pharmacologically acceptable salt or prodrug thereof represented by the formula:本發明提供對於傷害感覺接受性疼痛及神經病變性疼痛之兩方疼痛具有強鎮痛作用、且減輕副作用之化合物及其醫藥用途。本發明提供下述所代表之環己烷衍生物或其藥理學上容許的鹽或其前藥。